Battery-grid.



F. W. POST 8; A. M. MORLEY. BATTERY GRID. APPLICATION FILED AUG. 21, 1906.

9434 5645. Patented Nov. 24,.1908.

2 SHEETS-SHEET l.

F. W. POST & A.'-M- MORLEY.

BATTERY GRID.

APPLICATION FILED AUG. 21, 1906.

Patented Nov. 24,1908.

2 SHEETS-BHBBT 2.

Sim-m F iw witnessed v I FRANKLIN wrosr AND Acorns M. MoRLEr oF Los ANGELES, CALIFORNIA.

B ATTE RY-GRID.

Specification of Letters Patent.

Patented Nov. 24, 1908.

Application filed August 21, 1906. Serial No. 331,520.

i i I i i I i and durable so as to Withstand high charges j Y and discharges, will effectively maintain the active material in place without dividing it up into small practically separated sections, and will maintain its shape sufficiently to. permit its being filled several times with the active material before it breaks down.

Several embodin'ients of the invention are located in the spaces bounded'by one set of ribs, is in direct connection with that lo cated in the spaces between the other set, and the material is thus practically continuous throughout the grid.

It will be observed by reference to Fig. 2 that the ribs taper outwardly in opposite directions, andin order to properly maintain the material in place, the outer marginal portions of said ribs are provided with oppositely extending longitudinally disposed flanges 11, which flanges extend into the spaces between the ribs and constitute holding means for the material placed in said spaces. The marginal frame, which is as thick as both sets of ribs, also has inset flanges along its opposite inner edges.

In constructing the grid, the following composition is employed, which has been found peculiarly suitable for the purpose,

illustrated in the accompanying drawings,

wherein l igure 1 1s a side elevation of the preferred form of grid. Fig. 2 is a sectional view on an enlarged scale through a portion of the same and on the line 22 of Fig. l. Fig. 3 1s adetail sectional View through one view on the line 55 of the same. Fig. 6 is a side elevation of another embodiment of the invention. Fig. 7 is a sectional View on the line 77 thereof.

Similar reference numerals designate corresponding parts in all the figures of the dra-wi n three figures, the plate is a single integral structure, compr sing a marginal frame 8,

between which are located opposite sets of I ribs 9 and 10, said sets being disposed in different planes with their inner faces abutted and integrally joined, and each set constituting substantially one-half of the thickness of the grid.

As shown in Fig. l, the ribs are circular in form, their abutted portions being integrally joined to one another. and to the marginal frame 8. It will also be observed by refer ence to this figure that the ribs of one set extend across the spaces between tlie ribs of the other set. As a result when the active material is placed in position, that which is the following proportions being preferred: bismuth, two parts; antimony two parts; tin, one part; and lead, ninety-live parts, which compound forms a. very tough. and elastic metal, molded under pressure, so as to make a very compactcondensed structure. In the n'ianufacture of the grids, the flanges 11 are molded, as shown in Fig. 3, being afterwards upset, as shown in dotted lines in said figure. After the grids are cast, the flanges, turned outwardly on the ribs, are preferably put through a bath of chemical alkalin nitrate and lead sulfate, the grids then being in proper shape for filling or pasting. Grids as thus constructed have been found highly advantageous in storage or secondary batteries, in that they are strong and durable,

; and can be filled with peroxid or active material. several times before breaking down. In the enlbodin'ient illustrated 1n the first r Moreover they will withstand, without injury, high charges and discharges, and will elfectivcly maintain the active material in place.

A slightly different form of construction is shown 111 Figs. 4 and 5, wherein the marj ginal frame is shown at S, the sets of ribs 9 j and 10 being disposed at substantially right angles to each other, the ribs of each set being parallel. These ribs, as in the former construction, are provided with marginal retaining flanges 11, and reinforcing or strengthening braces 12 may be employed if desired.

Stillanother embodiment of the invention is illustrated in Figs. 6 and 7, wherein the marginal frame is shown at 8, and the sets of ribs are designated respectively 9 and E joined together, and those in one set extend 10. In this instance, said ribs form polygons, and are provided with retaining flanges 11". v

From the foregoing, it is thought that the construction, operation, and many advantages of the herein described invention will be apparent to those skilled in the art, without further description, and it will'be understood that various changes in the size shape, proportion, and minor details of construction, may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

Having thus fully described our invention, what we claim as new, and desire to secure by Letters Patent, is 1 A battery grid, comprising opposite sets ofspaced ribs? disposed in different planes,

20 the ribs of the diiterenr sets being integrally ing across the spaces between those of the other set, said ribs being composed of densely compacted metal and being oppositely and outwardly tapered, a marginal frame of the thickness of both sets of ribs and integral therewith, said frame surrounding both sets of ribs, and oppositely extending longitu-v dinally disposed retaining flanges formed upon these outer edges and arranged along the outer margins of the ribs and along the opposite inner edges of the frame.

In testimony that we claim the foregoing as our own. we have hereto affixed our signatures in the presence of two witnesses.

FRANKLIN 7. POST.

- ARCHIE liI. MORLEY.

\Vitnesses Cius. O. BRADLEY, ll. ll. Ronsn. 

